webdriver等待python中的ajax请求

问题描述

当前，我正在编写Webdriver测试以进行搜索，该测试使用ajax提出建议.如果在键入搜索内容之后并按Enter键之前添加显式等待，则测试效果很好.

Currently I am writing webdriver test for search which uses ajax for suggestions. Test works well if I add explicit wait after typing the search content and before pressing enter.

wd.find_element_by_xpath("//div[@class='searchbox']/input").send_keys("obama")
time.sleep(2)
wd.find_element_by_xpath("//div[@class='searchbox']/input").send_keys(Keys.RETURN)

但是

wd.find_element_by_xpath("//div[@class='searchbox']/input").send_keys("obama")
wd.find_element_by_xpath("//div[@class='searchbox']/input").send_keys(Keys.RETURN)

失败.我正在使用1个虚拟CPU在ec2上运行测试.我怀疑，即使在发送与搜索相关的GET请求之前，我也按回车键；如果在建议之前按回车键，它将失败.

fails. I am running tests on ec2 with 1 virtual cpu. I am suspecting, I pressed enter even before GET requests related to search are sent and if I press enter before suggestions, it fails.

添加显式等待还有更好的方法吗?

Is there any better way that adding explicit waits?

推荐答案

您确实可以添加显式等待，例如

You indeed can add an explicit wait for the presence of an element like

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait # available since 2.4.0
from selenium.webdriver.support import expected_conditions as EC # available since 2.26.0

ff = webdriver.Firefox()
ff.get("http://somedomain/url_that_delays_loading")
ff.find_element_by_xpath("//div[@class='searchbox']/input").send_keys("obama")

try:
    element = WebDriverWait(ff, 10).until(EC.presence_of_element_located((By.ID, "keywordSuggestion")))
finally:
    ff.find_element_by_xpath("//div[@class='searchbox']/input").send_keys(Keys.RETURN)
    ff.quit()

请参阅: http://docs.seleniumhq.org/docs/04_webdriver_advanced.jsp#explicit-and-implicit-waits

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